A study of subjective speech quality measurement over VoIP network
Jinsuk Kang, Young-do Kang, In-Ho Na, Yeon-Sung Choi, J Kim · 2002
This paper researches the scale of subjective speech quality measurement over VoIP (voice over IP) service which is a component of broadband networks. Though objective parameters of multimedia services like PSNR or jitter can be easily measured and defined, those factors do not easily met the users' perceptual recognition. It is suggested that the scale of speech quality measurement through the subjective measurement is more adequate for end-to-end speech quality which is composed of sender-side quality, transmission quality, and receiver-side quality, and which provides the degree of correctness in speakers' representation, the degree of impairment caused by various factors, and the degree of recognition of processed speech, respectively. It is also examined by the proposed method and verified by its availability.